Lesson 5: The Shield of Faith
The fourth piece of armor Paul mentions in Ephesians 6 is "the shield of faith." How did Roman soldiers use their shields? What purpose does a spiritual shield serve for us?
The Bible, in Daniel 3, records the story of the burning fiery furnace:
The three young men stood looking at the very site where they were to
be put to death. The edict had gone out—they were to be thrown, alive
and bound, into a furnace heated to seven times its usual fervor. Everyone
watching understood: This was an execution. This was what happened when
you disobeyed the king.
Just moments ago, the three men had been given the chance to circumvent
this ugly fate. With little more than a few motions on their part, they
could have saved their own lives. But they refused. Why?
The king had previously set up a 90-foot-high golden statue. At various
times throughout the day, which were to be prompted by music, he commanded
that his people fall down and worship this statue. Out of the entire nation,
we are given the names of only three men who had the courage to stand
against this royal decree. And for that courage, Shadrach, Meshach and
Abed-Nego were going to die.
When King Nebuchadnezzar became aware of their insubordination, he
summoned the rebels and gave them an ultimatum: Worship the statue or
be thrown into a fiery furnace. Their response is preserved for us in
"Shadrach, Meshach, and Abed-Nego answered and said to the king,
'O Nebuchadnezzar, we have no need to answer you in this matter. If
that is the case, our God whom we serve is able to deliver us from the
burning fiery furnace, and He will deliver us from your hand, O king.
But if not, let it be known to you, O king, that we do not serve your
gods, nor will we worship the gold image which you have set up.'"
The faith of these three men in God allowed them to stand up to the world's
most powerful man and refuse to follow his blasphemous orders. They were
then thrown into the furnace and miraculously delivered unharmed by God.
But perhaps the most amazing thing about their story is their unwavering
dedication to God in the face of an unknown outcome. Their faith was strong
enough to accept giving their lives!
How can we have that faith?
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Taking the Shield
Up until now, Paul's description of the armor of God has been limited to
items we wear. We put on the belt, the breastplate and the shoes, and they
essentially hold themselves up.
The shield is different. Paul tells us that the shield is something we must
take up, something we are required to raise. Just strapping it to our arm
won't do any good at all if we don't make the effort to hold it aloft and
How did the shield work in the Roman army?
The Roman shield—the scutum—was not the standard "medieval-esque"
shield most picture in their minds upon hearing the word. It was instead a
very large, slightly curved rectangular shield featuring at its center a large
metal knob (called a boss).
The scutum was an impressive line of defense. Because of its sheer
size (some were three and a half feet tall and almost three feet wide), soldiers
were afforded a great deal of protection from enemies. Because of its slight
curve, it was able to deflect attacks without transferring the full force
of the assault to the man holding the shield. Because of its boss, it was
able to deflect even the more vicious blows and function in a limited offensive
capacity as a means of knocking an opponent backwards.
What is faith?
Now faith is the substance of things hoped for, the evidence of things not
Here is a biblical definition of faith that clears up some common misconceptions.
If faith is "the substance of things hoped for, the evidence of things not
seen," then this has far-reaching implications. Substance is tangible, and
evidence is solid proof. Faith is, by definition, not some hazy emotion without
any grounding in reality. It is the irrefutable truth. It is real.
For we were saved in this hope, but hope that is seen is not hope; for why
does one still hope for what he sees? But if we hope for what we do not
see, we eagerly wait for it with perseverance.
Though it is based on solid evidence, that doesn't mean faith comes naturally
or easily. Paul here makes the obvious but necessary point: You don't hope
for what you already have. Faith involves a huge element of trust. We must
examine the evidence and see that God has proved Himself to be unchanging
and consistent, and then we must firmly believe that He will fulfill His promises
Where does living, saving faith come from?
For by grace you have been saved through faith, and that not of yourselves;
it is the gift of God...
1 Corinthians 12:9
...to another faith by the same Spirit, to another gifts of healings by
the same Spirit...
While we must believe God to even begin our walk with Him, after repentance and baptism He
gives us a deeper, living, growing faith through His Holy Spirit.
Why is a shield associated with faith?
If that is the case, our God whom we serve is able to deliver us from the
burning fiery furnace, and He will deliver us from your hand, O king. But
if not, let it be known to you, O king, that we do not serve your gods,
nor will we worship the gold image which you have set up.
A shield guards. While a physical shield protects us physically, faith can
protect our spiritual lives even in the middle of physical trials. When Satan
(through Nebuchadnezzar) attacked the values and beliefs of Shadrach, Meshach
and Abed-Nego, they were able to stand resolute and unwavering because of
their faith. In their response, they essentially said, "God is capable of
delivering us from this fate. We don't know if He will or not, but that doesn't
matter. He gave us His commands, and we are going to keep them regardless
of the physical outcome. We know He can just as easily raise us from the dead."
...above all, taking the shield of faith with which you will be able to quench
all the fiery darts of the wicked one.
A shield deflects. Satan is always hurling his fiery darts of fear, doubt
and worry in our direction, but the only time they can hit us is when we let
our shield of faith down—when we stop believing that God is in control; that
He is working everything out for our good; that whatever happens is for the
ultimate best of everyone involved, however little it seems to be that way.
And Peter answered Him and said, "Lord, if it is You, command me to come to
You on the water." So He said, "Come." And when Peter had come down out
of the boat, he walked on the water to go to Jesus. But when he saw that
the wind was boisterous, he was afraid; and beginning to sink he cried out,
saying, "Lord, save me!" And immediately Jesus stretched out His hand and
caught him, and said to him, "O you of little faith, why did you doubt?"
A shield is the first line of defense. While the rest of our armor helps
protect us from Satan's onslaught, it is not what you ideally want to be using
to absorb every hit. You do not, for instance, go out into battle intentionally
blocking everything with your head.
When our faith in God's omnipotence and care is strong, it is impossible
for Satan to break through our shield and land an attack. But when we allow
doubt to creep in, as Peter did when distracted by the waves, we will start
to sink. The rest of our armor will be battered, and so will we. But an actively
raised shield of faith prevents this otherwise inhibiting fatigue.
Then Jesus said to him, "Away with you, Satan! For it is written, 'You shall
worship the Lord your God, and Him only you shall serve.'" Then the
devil left Him, and behold, angels came and ministered to Him.
A shield can incapacitate. When Christ was being tempted by Satan, His faith
in the Word and commands of God repelled Satan for a time (Hebrews 4:15 tells
us that Christ was tempted in all things, so this was certainly not the only
encounter Christ had with the devil). The boss (the metal knob in the middle)
on the Roman shields allowed soldiers to give their enemies a stun-inducing
shove that would allow them to follow through with an attack. Our faith in
God, as demonstrated by Christ, can also give Satan a good shove backwards
and give us a chance to fight back by doing God's will and work.
Because God tells us that faith cannot just be in our minds, it must produce
actions—works of obedience and service (James 2:20).
How else can the shield be used?
The Roman military had an inventive and very effective tactic that made use
of their large shields. When enemies would begin firing arrows and other projectiles
at the army, the soldiers would close ranks into a rectangular array—called
the testudo, or "tortoise," formation—and those on the outside would
use their shields to create a wall around the perimeter. Then those in the
middle would raise their shields over their heads to protect everyone from
airborne missiles. The result was a formidable human tank that could be stopped
only through a tremendous effort.
And He Himself gave some to be apostles, some prophets, some evangelists,
and some pastors and teachers, for the equipping of the saints for the work
of ministry, for the edifying of the body of Christ, till we all come to
the unity of the faith and of the knowledge of the Son of God, to a perfect
man, to the measure of the stature of the fullness of Christ; that we should
no longer be children, tossed to and fro and carried about with every wind
of doctrine, by the trickery of men, in the cunning craftiness of deceitful
plotting, but, speaking the truth in love, may grow up in all things into
Him who is the head—Christ—from whom the whole body, joined and knit together
by what every joint supplies, according to the effective working by which
every part does its share, causes growth of the body for the edifying of
itself in love.
When the Roman army joined its shields together, it became an almost unstoppable
force. And if we in God's Church join our shields—that is, strengthen
each other with our faith, building up and serving within the Body as we are
able—we will become an unstoppable force able to take on any challenge.
We must remember as we fight that this is not simply our battle. This is
the battle of all our brethren, both near and around the world. And if we
are to win, it will only be once we put our faith in God and stand side by
side, contending earnestly and as one for "our common salvation...the
faith which was once for all delivered to the saints" (Jude 1:3).
Our faith is founded on the promises of God. How familiar are we with these
promises? Do you know what God has promised you? If our knowledge of and
trust in them are unsteady, we will be too. Review the short article "God's
Promises," also listed in the Related Resources section below, for a
quick refresher of what God has promised us—what we can bet our lives on.
Claim those promises and keep that shield up!
Next Lesson: The
Helmet of Salvation
Questions about this lesson? Feedback about
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